Review: HDZero Freestyle V2 VTX – The Powerful Video Transmitter Just Got Smaller

by Oscar
Hdzero Freestyle V2 Video Transmitter Vtx Connectors

From the moment the original HDZero Freestyle VTX hit the market, the FPV community have been asking for a more compact version without sacrificing power and features, and they listened. The HDZero Freestyle V2 VTX is as compact as a Vista with 20x20mm mounting, yet still boasts a one-watt maximum output, making it a ideal fit for a wide variety of frames such as 3″, 4″ and 5″ FPV drones.

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Still wondering which FPV system you should get? Check out my buyer’s guide: Which FPV System Should You Buy in 2023? Analog, DJI, HDZero, Walksnail Avatar

New to HDZero? Here’s a beginners guide to help you set it up: How to Setup HDZero FPV System

Where to Buy?

You can get the HDZero Freestyle V2 VTX from these vendors:

Hdzero Freestyle V2 Video Transmitter Vtx Camera Antenna

It comes with the following accessories:

  • HDZero Freestyle V2 VTX
  • Nano 90 Camera
  • HDZero RHCP Antenna
  • 120mm MIPI Cable
  • Power and SmartAudio cables
  • Support bars for MIPI Cable and U.FL, each with 3 screws (M1.4 sizing)
  • Adhesive tape (29 x 30 x 1mm dimensions)


  • Frequency Range: 5.725-5.850GHz
  • Transmitter Power Options: 25mW, 200mW, 500mW, and a maximum of 1W
  • Mounting Format: 20x20mm with M2 holes
  • Antenna Connection: Secure U.FL interface
  • Video Input: Sturdy MIPI
  • SmartAudio: Integrated
  • MSP Canvas Mode: Supported
  • Power Requirements: 7-25V, with consumption ranging between 6W-15W based on RF output
  • Weight: 22.3g
  • Dimensions: 29x30x14mm

A standout feature of the HDZero Freestyle V2 VTX is its potential to reach up to 1W output. But remember, straight out of the box, it’s limited to 200mW due to manufacturer’s restrictions. You can unlock it to reach higher output power levels (if it’s legal).

With support for various camera modes such as 540p at 90fps or 60fps, 1080p at 30fps, and 720p at 60fps, providing flexibility and adaptability to user preferences.

Design & Form Factor

The Freestyle V2 VTX from HDZero has a compact form factor similar in design to the Caddx Vista or the DJI O3 Air Unit, making it a versatile option for a wide range of 3-inch to 5-inch drone frames with the standard 20x20mm M2 mounting.

Hdzero Freestyle V2 Vtx Video Transmitter

Its footprint is significantly more compact compared to its predecessor, measuring 30mm long, 29mm wide, and 40mm tall, almost identical dimension to the Vista. It is 10mm smaller in both length and width than its predecessor and is 5g lighter, making it more versatile and compatible with a variety of frames. It can fit into any space that could accommodate a DJI Vista unit, extending its usability and adaptability significantly.

Hdzero Freestyle Vtx V1 V2 Size Compare Side By Side Form Factor

For reference only

One of the standout features is its anodized aluminum casing. Not only does this enhance its durability, but it also serves as a heatsink. It ensures the VTX remains cool, thus guaranteeing consistent performance throughout.

The HDZero Freestyle V2 VTX is equipped with various connectors, including a firmware updating port, a port for a keypad to adjust settings like band, channel, and output power, and a U.FL connector for the antenna. The VTX can be powered by a 6S battery directly (up to 25.2V). For configuration, it provides the convenience of adjusting through Betaflight OSD when SmartAudio is setup.

Hdzero Freestyle V2 Video Transmitter Vtx Connectors

The previous Freestyle VTX has issue with GPS, with many users struggling with satellite lock due to interference from the VTX. Thankfully, with the Freestyle V2 VTX, HDZero seems to have addressed this. Improved shielding and optimized RF design promises enhanced compatibility with GPS.

Installation and User Experience

Installing the HDZero Freestyle V2 VTX in existing FPV drones are straightforward, requiring no soldering for conversion if the flight controller already has a DJI plug. Users have the option to secure the VTX using double-sided tape provided (use ziptie for additional support), or utilize the 20×20 M2 mounting holes based on their preferences.

The VTX comes with all necessary accessories including the antenna, double-sided tape, and a harness for connecting to the FC. The ports are strategically located, making it more convenient to power and connect the video transmitter.

Potential Issues With Output Power

Early units of the Freestyle V2 VTX might deliver lower power than expected due to production oversight and error which results in the RF output grounding out to the heatsink. This issue can typically be rectified by simply loosening a few screws.

If you suspect your VTX might be affected by this, a quick power consumption test can confirm it. Set your VTX to 1W on R1 (that’s raceband channel 1), if it’s working correctly, the power consumption should be at around 14W. It’s worth noting, however, that this issue has been acknowledged and addressed, so units from newer production batches should not have this issue.

Decasing to Reduce Weight

The VTX on its own tips the scales at about 23g. Once you add the camera and antennas, the weight goes up to 33g. For those looking to shave off some grams from their setup, there’s the option of ditching the metal casing. This move will cut down the weight by a significant 14g, making the VTX a feather-light 9g. But before you get too excited, remember there’s a catch. Removing that casing will not only void your warranty but will also compromise the VTX’s overall durability and its ability to dissipate heat effectively.

Final Thoughts

The HDZero Freestyle V2 VTX stands out as, arguably, the pinnacle of HDZero’s VTX offerings. It boasts an impressive one-watt power output, a conveniently compact design, improved RF shielding, and the flexibility of casing removal for those seeking weight optimization.

You can get the HDZero Freestyle V2 VTX from these vendors:

For anyone who’s been on the fence about HDZero, especially due to reservations about the bulkier size of the earlier Freestyle VTX, the V2 is here to change your mind. It’s a transformative addition to the market and is definitely worth a second glance.

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